Submission #5899

#	Time	Username	Problem	Language	Result	Execution time	Memory
5899		cki86201	역사적 조사 (JOI14_historical)	C++98	5 / 100	3704 ms	10568 KiB

historic

#include<stdio.h>
#include<math.h>
#include<algorithm>
#include<map>
#include<set>
using namespace std;

typedef long long ll;

int n, k, qu;
ll ans[100010];
int p[100010];
map <int,int> M;
set <ll> S;

struct qua{
	qua(){}
	qua(int s,int d):s(s),d(d){}
	int s, d, c;
	bool operator<(const qua &l)const{
		return d/k != l.d/k ? d/k < l.d/k : s < l.s;
	}
}q[100010];

inline void ins(int x){
	int t = M[p[x]];
	++M[p[x]];
	S.insert((ll)(t+1) * p[x]);
}

inline void del(int x){
	int t = M[p[x]];
	--M[p[x]];
	S.erase((ll)t * p[x]);
}

int main()
{
	scanf("%d%d",&n,&qu);
	k = int(sqrt(n));
	int i;
	for(i=1;i<=n;i++)scanf("%d",p+i);
	for(i=0;i<qu;i++)scanf("%d%d",&q[i].s,&q[i].d), q[i].c = i;
	for(i=0;i<qu;i++)if(q[i].s > q[i].d)for(i=0;;i++);
	sort(q, q+qu);
	int L = 1, R = 0;
	for(i=0;i<qu;i++){
		while(L>q[i].s)ins(--L);
		while(R<q[i].d)ins(++R);
		while(L<q[i].s)del(L++);
		while(R>q[i].d)del(R--);
		int a = M[9];
		ans[q[i].c] = *(--S.end());
	}
	for(i=0;i<qu;i++)printf("%lld\n",ans[i]);
	return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 25
• Subtask 4: 0 / 60